ucar.unidata.data.grid
Class GeoGridAdapter

java.lang.Object
  ucar.unidata.data.grid.GeoGridAdapter

public class GeoGridAdapter
extends Object

Adapt a ucar.unidata.GeoGrid into VisAD Data object(s). GeoGridAdapter gets a Geogrid and has methods to create a a VisAD 2D or 3D FlatField, or sequence of same, from the GeoGrid for parameter names and time(s) desired.

Version:

$Revision: 1.112 $ $Date: 2007/08/20 22:33:38 $

Author:

Don Murray

Field Summary

String

cacheFile cache file

Constructor Summary

GeoGridAdapter(GeoGridDataSource dataSource, ucar.nc2.dt.grid.GeoGrid geoGrid)
Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

GeoGridAdapter(GeoGridDataSource dataSource, ucar.nc2.dt.grid.GeoGrid geoGrid, ucar.nc2.NetcdfFile ncFile)
Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

GeoGridAdapter(GeoGridDataSource dataSource, ucar.nc2.dt.grid.GeoGrid geoGrid, String paramName)
Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

GeoGridAdapter(GeoGridDataSource dataSource, ucar.nc2.dt.grid.GeoGrid geoGrid, String paramName, ucar.nc2.NetcdfFile ncFile)
Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

GeoGridAdapter(GeoGridDataSource dataSource, ucar.nc2.dt.grid.GeoGrid geoGrid, String paramName, ucar.nc2.NetcdfFile ncFile, Object extraCacheKey)
Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Method Summary

FieldImpl	getData() Get all the data from this GeoGrid.
protected List	getLevels() Create the list of levels for this grid
FieldImpl	getSequence() Get a time ordered sequence of 2D flat fields
FieldImpl	getSequence(int[] timeIndices) Get a time ordered sequence of 2D flat fields
FieldImpl	getSequence(int[] timeIndices, Object loadId) Get a time ordered sequence of 2D flat fields
static boolean	isZAxisOk(ucar.nc2.dataset.CoordinateAxis1D zaxis) Utility to check if we should ignore the given z axis
static boolean	isZUnitOk(Unit zUnit, ucar.unidata.geoloc.vertical.VerticalTransform vt) Utility to check if we can handle the vertical transform

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cacheFile

public String cacheFile

cache file

Constructor Detail

GeoGridAdapter

public GeoGridAdapter(GeoGridDataSource dataSource,
                      ucar.nc2.dt.grid.GeoGrid geoGrid)
               throws VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

Throws:

VisADException - unable to create one of the VisAD objects

GeoGridAdapter

public GeoGridAdapter(GeoGridDataSource dataSource,
                      ucar.nc2.dt.grid.GeoGrid geoGrid,
                      String paramName)
               throws VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

paramName - name of the parameter

Throws:

VisADException - unable to create one of the VisAD objects

GeoGridAdapter

public GeoGridAdapter(GeoGridDataSource dataSource,
                      ucar.nc2.dt.grid.GeoGrid geoGrid,
                      ucar.nc2.NetcdfFile ncFile)
               throws VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

ncFile - file that the GeoGrid data is coming from

Throws:

VisADException - unable to create one of the VisAD objects

GeoGridAdapter

public GeoGridAdapter(GeoGridDataSource dataSource,
                      ucar.nc2.dt.grid.GeoGrid geoGrid,
                      String paramName,
                      ucar.nc2.NetcdfFile ncFile)
               throws VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

paramName - name of the parameter

ncFile - file that the GeoGrid data is coming from

Throws:

VisADException - unable to create one of the VisAD objects

GeoGridAdapter

public GeoGridAdapter(GeoGridDataSource dataSource,
                      ucar.nc2.dt.grid.GeoGrid geoGrid,
                      String paramName,
                      ucar.nc2.NetcdfFile ncFile,
                      Object extraCacheKey)
               throws VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

paramName - name of the parameter

ncFile - file that the GeoGrid data is coming from

extraCacheKey - Extra key to use when caching

Throws:

VisADException - unable to create one of the VisAD objects

Method Detail

getLevels

protected List getLevels()
                  throws VisADException

Create the list of levels for this grid

Returns:

List of levels as Real-s

Throws:

VisADException - On badness

getSequence

public FieldImpl getSequence()

Get a time ordered sequence of 2D flat fields

Returns:

data for all the times for a particular 2D field

getSequence

public FieldImpl getSequence(int[] timeIndices)

Get a time ordered sequence of 2D flat fields

Parameters:

timeIndices - indices of times in the data

Returns:

data for all the times for a particular 2D field

getSequence

public FieldImpl getSequence(int[] timeIndices,
                             Object loadId)

Get a time ordered sequence of 2D flat fields

Parameters:

timeIndices - indices of times in the data

loadId - loadId

Returns:

data for all the times for a particular 2D field

getData

public FieldImpl getData()
                  throws VisADException

Get all the data from this GeoGrid.

Returns:

VisAD representation of this GeoGrid

Throws:

VisADException - problem creating the grid

isZAxisOk

public static boolean isZAxisOk(ucar.nc2.dataset.CoordinateAxis1D zaxis)

Utility to check if we should ignore the given z axis

Parameters:

zaxis - given z axis

Returns:

Is ok

isZUnitOk

public static boolean isZUnitOk(Unit zUnit,
                                ucar.unidata.geoloc.vertical.VerticalTransform vt)

Utility to check if we can handle the vertical transform

Parameters:

zUnit - zUnit

vt - vertical transform

Returns:

true if we can